tube à rayons cathodiques: n. cathode ray tube, crt, vacuum tube which displays images when an electron beam falls on a phosphorescent surface (this technology is commonly used in computer monitors and televisions)
lancer: v. send up, launch, shoot; issue, eject, send, emit; evolve, fling, throw; initiate, put up, bring out; throw away, cast, let fly; sling, slipn. throwing, launching, sending out